Baby bath seat



FIG. 1 is a perspective view of the baby bath seat embodying our new design;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a rear elevation view thereof;

FIG. 4 is a right side elevation view thereof, the left side being a mirror image thereof; and,

FIG. 5 is a top plan view thereof.

The broken lines shown in the drawings are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a baby bath seat, as shown and described. 